Part worked in older unit after a little adaptation

The part was advertised as a drop-in compatible replacement for my older model machine. Almost. A couple of unexpected actions were needed on my part: 1) I had to file off a small amount of metal from the corner of one of the screw mounts for it to fit properly; 2) the screw thread/size where the top cover screws in differed from the older version so I had to run to the hardware store for a replacement. (The screw I found is not exactly correct, but works OK--although it is a bit looser in diameter.)